I have built an app and downloaded the .apk file. On installing in my mobile phone, all works fine. Whereas, installing the same .apk file in other phones, not working properly.(Not even passing the login page). Is there any issue. Should i change the build settings.?
Several causes for this, if your apps is crashing in some devices you need to get the messages displayed in LogCat to have a more detailed information.
I think that your app wasn´t downloaded from the PlayStore, Playstore can filter some devices where your app is not supported.